Courthouse hires consulting firm to test their security by trying to break into building as part of a security demonstration. Local police who knew about the test ahead of time show up and arrest the firm employees despite courthouse security guards saying they were allowed on property.

https://www.techdirt.com/articles/20200131/11153743831/criminal-charges-finally-dropped-against-security-researchers-who-broke-into-iowa-courthouse.shtml